Lei Huang 84dbbfdeb9 [PowerPC] define target hook isReallyTriviallyReMaterializable() ...

Define target hook isReallyTriviallyReMaterializable() to explicitly specify
PowerPC instructions that are trivially rematerializable.  This will allow
the MachineLICM pass to accurately identify PPC instructions that should always
be hoisted.

Differential Revision: https://reviews.llvm.org/D34255

llvm-svn: 305932

2017-06-21 17:17:56 +00:00

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